History of endoscopic diagnosis and treatment for esophageal and pharyngeal squamous cell carcinoma

Developments and progress in endoscopy have greatly contributed to improvements in medical practice. We herein present the contribution of endoscopy to advancements in the diagnosis and treatment of esophageal and pharyngeal cancers in the past century. Esophageal cancer is the seventh most common cancer and the sixth most common cause of cancer-related mortality worldwide, with 572,000 new cases and 509,000 deaths in 2018.1 Esophageal squamous...